Nasal cannula



FIG. 1 shows a top and front perspective view of the nasal cannula;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a first side view thereof; and,

FIG. 8 is a second side view thereof. 

CLAIM The ornamental design for a nasal cannula, as shown and described. 